Box2D is a 2D physics engine for games

🌐 The Internet OS! Free, Open-Source, and Self-Hostable.

Master programming by recreating your favorite technologies from scratch.

A web browser that plays old world blues to build new world hope

Various AI scripts. Mostly Stable Diffusion stuff.

Open-source IoT Platform - Device management, data collection, processing and visualization.

Speech-to-text, text-to-speech, and speaker recognition using next-gen Kaldi with onnxruntime without Internet connection. Support embedded systems, Android, iOS, Raspberry Pi, RISC-V, x86_64 servers, websocket server/client, C/C++, Python, Kotlin, C#, Go, NodeJS, Java, Swift, Dart, JavaScript, Flutter

Lightweight Postgres packaged as WASM into a TypeScript library for the browser, Node.js, Bun and Deno from https://electric-sql.com

The most powerful and modular diffusion model GUI, api and backend with a graph/nodes interface.

An open-source remote desktop application designed for self-hosting, as an alternative to TeamViewer.

There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.

Collection of Summer 2025 tech internships!

The open and composable observability and data visualization platform. Visualize metrics, logs, and traces from multiple sources like Prometheus, Loki, Elasticsearch, InfluxDB, Postgres and many more.

No-code LLM Platform to launch APIs and ETL Pipelines to structure unstructured documents

Cloudflare’s documentation

A Collection of application ideas which can be used to improve your coding skills.